MMSE reception and successive interference cancellation for MIMO systems with high spectral efficiency

2005 ◽  
Vol 4 (3) ◽  
pp. 1244-1253 ◽  
Author(s):  
A. Zanella ◽  
M. Chiani ◽  
M.Z. Win
Keyword(s):  
Spectral Efficiency ◽  
Interference Cancellation ◽  
Mimo Systems ◽  
Successive Interference Cancellation ◽  
High Spectral Efficiency

scholarly journals Interference Cancellation for MIMO Systems Employing the Generalized Receiver with High Spectral Efficiency

2021 ◽  
Vol 17 ◽  
pp. 1-15
Author(s):  
Vyacheslav Tuzlukov
Keyword(s):  
Spectral Efficiency ◽  
Interference Cancellation ◽  
Rayleigh Fading ◽  
Mimo Systems ◽  
Coherent Detection ◽  
Symbol Error Probability ◽  
Receiving Antenna ◽  
High Spectral Efficiency ◽  
Approximate Expressions ◽  
Flat Rayleigh Fading

In this paper, we investigate the performan-ce in terms of symbol error probability (SEP) of multipleinput multiple-output (MIMO) systems employing the ge-neralized receiver with high spectral efficiency. In particular, we consider the coherent detection of M-PSK signals in a flat Rayleigh fading environment. We focus on spectrally efficient MIMO systems where after serial-to-parallel con-version, several sub-streams of symbols are simultaneously transmitted by using an antenna array, thereby increasing the spectral efficiency. The reception is based on linear mi-nimum mean-square-error (MMSE) combining, eventually followed by successive interference cancellation. Exact and approximate expressions are derived for an arbitrary nu-mber of transmitting and receiving antenna elements. Sim-ulation results confirm the validity of our analytical meth-odology.

scholarly journals Hardware Phase Shift Hybrid Precoding Designs For Multi-User Massive MIMO Systems

2021 ◽  
Vol 2134 (1) ◽  
pp. 012027
Author(s):  
H Ayad ◽  
M Y Bendimerad ◽  
F T Bendimerad
Keyword(s):  
Spectral Efficiency ◽  
Massive Mimo ◽  
Phase Shifter ◽  
Mimo Systems ◽  
Digital Processing ◽  
Hybrid Precoding ◽  
Double Phase ◽  
High Spectral Efficiency ◽  
Fixed Phase ◽  
Configuration Simulation

Abstract Hybrid precoding is a challenging design for massive MIMO systems that involves a combination of analog and digital processing, aiming to maximize the spectral efficiency (SE). Most works on hybrid precoding focus on the single phase shifter (SPS) implementation to adapt the phase from RF chains to antennas. In this paper we propose to develop the double phase shifter (DPS) and the fixed phase shifter (FPS) in both single-path and multi-path configuration. Simulation results certify a significant improvement for both proposed implementations with high hardware efficiency (HE) and high spectral efficiency especially in multi-path environment.

Adaptive MIMO Systems with High Spectral Efficiency

2009 ◽  
pp. 286-307 ◽  
Author(s):  
Zhendong Zhou ◽  
Branka Vucetic
Keyword(s):  
Spectral Efficiency ◽  
Adaptive System ◽  
Mimo Systems ◽  
Mimo System ◽  
Adaptive Modulation ◽  
Multiple Input Multiple Output ◽  
Adaptive Modulation And Coding ◽  
Multiple Input ◽  
High Spectral Efficiency ◽  
Input Multiple Output

This chapter introduces the adaptive modulation and coding (AMC) as a practical means of approaching the high spectral efficiency theoretically promised by multiple-input multiple-output (MIMO) systems. It investigates the AMC MIMO systems in a generic framework and gives a quantitative analysis of the multiplexing gain of these systems. The effects of imperfect channel state information (CSI) on the AMC MIMO systems are pointed out. In the context of imperfect CSI, a design of robust near-capacity AMC MIMO system is proposed and its good performance is verified by simulation results. The proposed adaptive system is compared with the non-adaptive MIMO system, which shows the adaptive system approaches the channel capacity closer.

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